Java Mobile App Bug Fixing - Android Studio- URGENT - 1 hour

I'm experiencing some issues with my Java mobile app developed in Android Studio.

Key Problems:
- Incorrect Functionality: There are parts of the app that are not working as intended.

Specific Areas Affected:
- In-app Purchases: There are issues with how purchases are processed within the app.
- Data Synchronization: There seems to be a lag or inconsistency in how data is being synchronized across the app.

Ideal Candidate:
- Proficient in Java and Android Studio
- Experienced in debugging mobile applications
- Familiar with handling in-app purchases and data synchronization issues
- Able to deliver a smooth functioning app post-fix.